“I’m a drunkard.”
Casablanca
Office Space
Nope (well, maybe, I do not know but that is not the specific movie I was quoting from).
When the line was spoken in the theater I was at I think I was the only person who laughed. It goes by pretty quick.
The line in Office Space is " So I was sitting in my cubicle today, and I realized, ever since I started working, every single day of my life has been worse than the day before it. So that means that every single day that you see me, that’s on the worst day of my life."
“Instead of changing as usual at Charing Cross, I came straight on to Rio de Janeiro.”
“Who are those guys?”
Butch Cassidy and the Sundance Kid
“He’d kill us if he got the chance.”
The Conversation.
“All that detail just from memory?”
“How 'bout the boy? You gonna hang him too, or just beat him up some more?”
Right you are!
Yep. Too easy.
I almost went with “If he’d just pay me what he’s spending to make me stop robbing him, I’d stop robbing him.”
“Ask him to judge who is stronger: His gods or my cannon.”
The Lavender Hill Mob. Alec Guinness, with Audrey Hepburn hovering somewhere nearby.
!00% correct. It was her first film appearance, due to Sir Alec’s insistence that she be given a part.
“He called me a lady!” 
Also Robert Shaw’s first film; non-speaking, but he does some good mugging.
“You wouldn’t do that… would you?”
"Give me one reason why I shouldn’t."
"Because I’m… cute?"