Dave Bautista is giving kudos to Ben Affleck and Jennifer Lopez for being respectful movie-goers -- but on the topic of his own flick crushing it ... DB ain't handing himself flowers.
We got the actor Tuesday at LAX where our photog brought out the fact that Bennifer got caught picking up their own trash and tidying up at the theaters this week while watching 'Dune 2' ... which just so happens to star in.
Check it out ... Dave tells us that what Ben and Jen did -- namely, cleaning up their own crap -- is SOP as far as he's concerned .