Uma Thurman poses with look-alike son Levon on Cannes Movie Competition purple carpet

The celebrities — and their kids — have arrived in Cannes. Uma Thurman hit the purple carpet on Tuesday to have fun the premiere of Johnny Depp’s new film, “Jeanne du Barry,” and was joined by a particular date: son Levon Thurman-Hawke. Thurman-Hawke, 21, is an actor himself, having starred in “Blackout” in 2018 and…