LeBron James might have familiar company on the set of "Space Jam 2" ... 'cause TMZ Sports has learned producers have already reached out to Cavs star J.R. Smith for a role in the flick.
We spoke to Smith's rep Daniel Hazan ... who says producers contacted him a few weeks ago to see if Smith would be down for a part -- and J.R.'s ears perked up.
"There is mutual interest," Hazan says.
As for the role -- nothing's set in stone, but producers have kicked around the idea of Smith possibly voicing an animated character ... a la "the Monstars" from the original.
It makes sense for producers to go after Bron's teammates -- when Michael Jordan starred in the original "Space Jam," several Bulls teammates like Scottie Pippen and Luc Longley got to come along for the ride.
Hazan says he's hopeful the two sides will be able to work something out soon -- saying at the end of the day, "It all depends on the deal."