United Kingdom, March 5 -- Maggie Gyllenhaal left a sweet note for brother Jake in Stephen Colbert's couch.

The 48-year-old director - who cast her famous sibling for the first time in her new movie The Bride! - appeared on The Late Show the night before Jake did this week, and she snuck a note for him down the arm of the sofa at the Ed Sullivan Theater.

Host Colbert told Jake: "Your sister left you a present."

He admitted Maggie "would not explain something to us", but left a cryptic note on a piece of paper, which she stuck in the sofa".

Colbert insisted he and his crew "didn't take it out", adding: "It should still be there if you dig down, I think it's on this side."

The 45-year-old actor retrieved the note, and read: "You're a b...