The actors stopped by BBC Radio 1 to promote their upcoming romantic sci-fi drama, where Pratt and Lawrence engaged in a segment Scott Mills and Chris Stark call "Playground Insults." The idea is to lob funny disses at each other. In Pratt and Lawrence's case, they took the shade-trading very seriously — the hosts described it as "the darkest one yet." Watching the co-stars eviscerate each other with a variety of increasingly sick burns is absolutely hilarious.