With 82 credits to his name, Weaving has worked with many of the greatest actors of this generation, do a Six Degrees game is in order. I'll give the first name. The person who replies gives the second one, so one and so forth.
First up: Forest Whitaker
Forest Whitaker worked with Jude Law in Repo Men
Jude Law worked with Kate Winslet in the Holiday
Kate Winslet worked with Leonardo DiCaprio in Titanic
Leonardo DiCaprio worked with Mark Ruffalo in Shutter Island
Mark Ruffalo worked with Chris Evans in Avengers Assemble
Chris Evans worked with Hugo Weaving in Captain America
Next one, Jack Lemmon
Jack Lemmon worked with Kevin Spacey in Glengarry Glen Ross
Kevin Spacey worked with Chazz Palmateri in The Usual Suspects
Chazz Palmateri worked with Robert De Niro in A Bronx Tale
Robert De Niro worked with Leonardo DiCaprio in This Boys Life
Leonardo DiCaprio worked with Tom Hanks in Catch Me if You Can
Tom Hanks worked with Hugo Weaving in Cloud Atlas
Next: Philip Seymour Hoffman