Sean Penn hates selfies and will not, under any circumstances, go to a public gathering with more than eight people — which is why he was noticeably absent from the recent 98 th Academy Awards, where he won Best Supporting Actor (his third Oscar). The revelations came during a conversation between Penn and CNN anchor Kaitlin Collins during a Friday afternoon talk at Spring Studios in lower Manhattan as part of the 25 th annual Tribeca Festival , running June 3-14. Penn is a regular fixture at