Trailer leaks online, a week before intended preview, but Marvel follow up by tweeting official HD version within hours Dammit Hydra! Marvels tweet showed they were taking it on the chin of their glitchy Mark 42 Iron Man helmet when the trailer for the Avengers: Age of Ultron film was leaked online on Wednesday a week before its intended preview during the Agents of S.H.I.E.L.D TV series.Within a few hours, the studio did the smart thing and tweeted its own official version in HD.Here it is!