Austin Rivers: Pumped About 'Ninja Turtles' Cameo ... Gunning For 'Space Jam 2'

When in L.A. ... you get in the movies -- just like Clippers star Austin Rivers, who locked up a pretty sweet cameo in the new 'Teenage Mutant Ninja Turtles' movie!

We spoke with Austin -- who's still recovering from that gnarly eye injury he suffered earlier in the NBA playoff -- and he told us he was super stoked to get a role in a scene shot at Madison Square Garden.

So, what's next ... "SPACE JAM 2" -- that is, if producers hit him up for a role.

C'mon LeBron, you can pull some strings, right?