If you want an unremarkable Spielberg movie, choose from Always, Terminal, or Catch Me If You Can.
Also the movie Hitch starring Will Smith was perfectly…fine.
Accidental Tourist
Catch Me If You Can was great!
I saw one recently which was wildly adequate - Age of Adeline. Saw it in theaters. I remember Harrison Ford, bad narration, and … that’s about it.
Great choice.
I’m going to be disagreed with, but Interstellar would be my pick. Was expecting too much I guess. Both my Wife and I wanted it to be just OVER.
Just bought from Amazon -
Annie Hall
Das Boot
Butch Cassidy and the Sundance Kid
Galaxy Quest
American Graffiti
Dr Strangelove
Wanted all of those in my collection.
ETA - Agree that Catch Me If You Can was great. Very fun.
*Obviously we’re going to disagree on some - mine will be with Grand Canyon. I think that’s a great film, and I own the DVD. Are you surprised, but not appalled? 
I totally agree with Interstellar, and will add Gravity. I was surprised two space movies, which I would normally be inclined to enjoy, could be so meh.
There’s a film with Dustin Hoffman, Alan Alda and John Travolta which cost $50 million to make…
Mad City, anyone?
Grand Canyon is great. I also have it. The ending is a bit sappy, but Kevin Kline and Danny Glover work great together.
The Book of Love (1990), about a young guy running around with his buddies in the 1950s, getting into the usual cliche shenanigans and looking for a girlfriend, would fit perfectly.
I recently watched Sin Dejar Huella. Absolutely unremarkable. (Except to remark that it is unremarkable.)
Thought of one, so I can actually contribute to the thread. 
Memoirs of an Invisible Man
John Carpenter directing Chevy Chase, Daryl Hannah, and Sam Neill, with Chase in the title role. It had potential. It frittered it away, mostly because it couldn’t decide whether it was a drama or a comedy, I think. It had some witty moments, but no real laughs. It had some decent invisibility effects, but nothing really exciting. The actors couldn’t wring enough drama out of the rather weak and clichéd plot to make up the difference. (To be fair, Chase had an uphill battle–a mostly comic actor trying to convey serious emotion while invisible can’t be easy.)
In the end, it was a mostly invisible movie about an invisible man.
Unremarkable: JFK
Underwhelming: Deep impact
Un… something: Day After Tomorrow
All decent enough movies. All entertaining. But none of them were especially good or memorable.
I’m with you on this one.
After being led to believe it was some super clever work of wry comic genius and having my expectations built up so high, I was very disappointed with this movie.
It had it’s good moments, but overall I found it very, very unremarkable.
If you look at movie listings from the past, it’s easy to find hundreds of unremarkable movies by just looking at a list of them, especially when the studio system was in play. Hollywood had a ready market for anything they made, so they did a lot of low- and medium-budget films that were meant to be disposable.
Take this list of movies from 1939, a year often cited as one of the best in film. If you recognize over 10% of the titles listed, you’re a film historian.
I think damn near every Western ever made would fit into this category.
Couldn’t the same be said of just about every romance, sci-fi, fantasy, action, drama ever made? I haven’t seen a whole lot of westerns, so I can’t judge. Is there really a particularly heavy lean toward mediocrity in that genre?
My first thought when I read your comment was, “what about The Unforgiven!?” Though I realize that one good movie in a sea of average movies doesn’t save the genre. I still haven’t gotten around to seeing the Fistful of Dollars series of spaghetti westerns, so I don’t know if they live up to their reputation. But hey, they do *have *a reputation.
I was about to say I’ve never seen a buddy cop movie that impressed me, but then I remembered Beverly Hills Cop, which was dang funny.
Police Academy
All SEVEN.
My first thought was Bad Company (2002), which I found to be not quite funny enough to be a good spoof of the spy/action genre, and not quite riveting enough to be a great action movie. Overall I remember it being enjoyable enough, although I haven’t watched it since.
I would probably say the same about Showtime, also from 2002.
The previous post reminded me of In Good Company, which fits the bill for me.
I disagree with many of the suggestions so far, sometimes strongly, but Gung Ho is such a perfect embodiment of what the OP is looking for I don’t have the heart to argue.
Good choice. Along the same line is Loaded Weapon Loaded Weapon 1 (1993) - IMDb and Men at Work Men at Work (1990) - IMDb
Not bad, not great and probably not as funny as you remember them to be.
Brooklyn (2015).
Many people here will undoubtedly disagree with me because this film was rated quite highly by critics and other people. Also, it was up for many “Best Picture” awards.
So, what was my problem with this film?
Here is a summary of the plot:
IMHO, this film was extremely “unremarkable”. A young lady emigrates from Ireland to Brooklyn NY and gets a job, meets a “fellah”, falls in love, gets married, has some crises, finds some happiness, goes back to Ireland for a visit, decides she prefers Brooklyn, moves back to Brooklyn and ultimately, she lives happily ever after.
My problem is that outside of a fairly nice story, nothing particularly interesting ever seems to happen. To summarize: Nothing ever happens. What a snore fest.
I suppose it could be said this is a love story and the thing that happens is two unhappy people from very different backgrounds meet and makes each other happy and fall in love and live happily ever after. It’s something that most all of us long for in our lives. OK. I admit that.
People who disagree with me will say the photography is beautiful. The story is so well done that it transports people back to the time in history around WW2. But still, … ZZZZZ … snore.
I kept waiting for something to happen. I waited and waited and waited. But nothing really ever happens.
Perhaps it would be better for me to say that nothing **interesting **ever really happens.
I walked away thinking, “WTH? When is something going to happen? Is something ever going to happen?” But, nothing happened. Nothing ever happened,
SNORE … SNORE.