The film is all but three hours long.

这电影几乎有三小时。 这电影几乎有三小时。

youdao

We were without electricity for three hours but it's on again now.

我们停电三个小时了，不过现在又来电了。

《牛津词典》

After three weeks, they gradually reduced their sleep to about eight hours. But another interesting thing happened.

3周后，他们把睡眠时间逐渐缩短到8小时。但是另一件有趣的事发生了。

《柯林斯英汉双解大词典》

But experts generally advise against using the drug if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.09.22

But traditional guidelines say not to use tPA if more than three hours have passed after the first signs of a stroke.

VOA: special.2009.08.12

But recent findings suggested that tPA may be effective in saving brain tissue even if three to four and a half hours have passed.

VOA: special.2009.09.22

But three hours was not enough time to take-in everything.

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The audience was eventually battered into submission by the bloated sound and hectic fury of Britain's greatest hits, but three hours felt somewhat on the long side for a show that didn't quite know how to wave goodbye.

BBC: Olympics closing ceremony: A long goodbye to the Games

But after three hours and 56 minutes in the Louis Armstrong stadium Murray was a shadow of his recent self, unable to move freely after twice requiring treatment to his left thigh and struggling to keep his temper in check.

BBC: Stanislas Wawrinka beats Andy Murray at US Open