[First lines of the film] [bounces off a force field]

Shit!

Language!
--

[after everyone else has reported from the battlefield]

Wait a second. No one else is gonna deal with the fact that Cap just said "Language"?

I know! [hurls his bike through the front of a jeep] Just slipped out.
--

[later, during another part of the battle]

Find the scepter. [Flies off]

And for gosh sake, watch your language.

[to himself]

That's not going away any time soon.