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UPDATE: As of noon today, big online ticketseller Fandango-com was reporting that 69% of its ticket sales were for Pineapple Express, 11% for Sisterhood Of The Traveling Pants 2 (both are opening today) and 14% for The Dark Knight.

This weekend’s predictions start early with today’s opening of Sony’s Pineapple Express. I hate when that happens because it makes the Friday-Saturday-Sunday showdown far less exciting. (And box office analysts live for the drama…) This Judd Apatow-bannered stoner comedy starring Seth Rogen and James Franco should gross more than $10 million Wednesday/Thursday and probably mid to high $20sM for the weekend which would give the pic a 5-day total of mid-$30sM. Certainly, the tracking is showing a $35M-$37.5M range for the five days. But my box office gurus think the R-rated movie which is getting good buzz and great reviews could hit $40M. But will the weekend total be big enough to knock off Warner Bros’ top gun The Dark Knight? Maybe. It’ll definitely be a tight race. My box office gurus don’t expect the Batman installment to drop much more than 40% Friday through Sunday. That would give the pic a $25+M weekend. Also opening today is Warner Bros’ The Sisterhood Of The Traveling Pants 2 whose tracking shows an $18M to $21M 5-day range which sounds about right.

For more estimates listed by title, see box office results here...

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