Emma Stone and boyfriend Andrew Garfield were no-shows at Sunday night's Academy Awards where he was slated to present.

It was a last-minute scramble to have actor Chris Evans fill in for Stone's boyfriend Garfield, 30, during the Oscar ceremony.

Pals close to the couple reveal their absence must have been for a serious reason.

"It was disheartening to learn that Andrew canceled on the Oscars," an insider told Breaking Celebrity News.

"If it were a fight or something between them one would have just came without the other, but this seemed to be more of something going on with one of their families."

Another source told Breaking Celebrity News that Stone, 25, had a long standing family commitment in Arizona.

The insider said it must have been something important for them to miss a highly publicized appearance.

"With Emma, it's all family first. And Andrew is so devoted to her that he wouldn't just leave her in New York dealing with some sort of crisis on her own," the source said.