Chris Hemsworth was honoured during a Hollywood Walk of Fame ceremony which saw his Avengers co-star Robert Downey Jr mark the occasion with a “roast”.The Thor actor received a star in the category of motion pictures alongside Furiosa: A Mad Max Saga director George Miller and co-star Anya Taylor Joy, as well as his parents, wife Elsa Pataky and their three children.During the Hollywood ceremony, Downey Jr said he had spoken to their Marvel friends Jeremy Renner, who plays Hawkeye, Hulk star Mark Ruffalo, Scarlett Johansson, who plays Black Widow, and Captain America’s Chris Evans for tributes.