The episodes, entitled Oscar Buzz Edition, see Zach Galifianakis conducting irreverent interviews with the Academy Award hopefuls ahead of the ceremony on February 24.
In the videos Galifianakis chats to his Hangover co-star Cooper, who also appeared on the series in 2009, and the pair are seen having a spoof fight, with Galifianakis's fern plants bearing the brunt of Cooper's rage.
Lawrence also brands Galifianakis "fat" and says that he should refrain from eating any more pudding.
One interview sees Galifianakis asking Django Unchained star and BAFTA winner Christoph Waltz whether he has ever considered changing his surname to breakdance.
Guests on Galifianakis's show, which has been running since 2008, aren't informed of what he will ask them ahead of appearing.
Watch both episodes of Between Two Ferns - Oscar Buzz Edition below: