Originally due for release last October, but delayed until the Spring (so they could try and make it less 1D!? -sorry!), the all-star ensemble comedy “The Big Wedding”… has a trailer. A starry event, the film stars Robert De Niro, Diane Keaton, Susan Sarandon, Amanda Seyfried, Katherine Heigl, Topher Grace, Ben Barnes, and Robin Williams. Honestly, the trailer makes the film almost looks like a cheesy caricature – and that music!? – of rom-com’s set during impending weddings. Can the cast save it? Even Seyfried!?