What are the most hackneyed, cliched lines in all of TV and film?

[computor voice from loudspeaker]

"Self-Destruct in 1 minute 30 seconds…

Self-Destruct in 1 minute 29 seconds…

Self-Destruct in 1 minute 28 seconds…"

[/computor voice from loudspeaker]

“See you in hell.”

and the occasional comeback…

“Not if I see you first.”

Also, in a similar vein…

“Go to hell.”

followed by…

“You first.”

Father and Son (the words may change but the deliver is always the same… I’m using a bastardized “Catch Me If You Can” version).
Early in the movie…
Father: (emphatically) We’ll take it to the moon, son.
Son: Yeah, to the moon, Dad!
Father: (quietly) to the moon

Later on in the movie, these lines will be repeated for further pathos.
Another one…
“Things?!.. What things?”

Saw DeNiro do it. Not as often as Newman, though.

Q