DiCaprio and Pattinson know each other through their mutual movie friend Reese Witherspoon and it is said that the latter has invited the 26-year-old to Puerto Rico, reported Contactmusic.
"Leo has been one of Rob's role models for years, and Rob was totally taken by surprise when Leo called him. Leo invited Rob along on a getaway he's planning when he's in Puerto Rico for the wrap party on the movie he's producing, 'Runner, Runner'," a source said.
Pattinson is lying low since news of his ex-girlfriend Kristen Stewart cheating on him with director Ruper Sanders broke.