How much money would you want to wear a bad wig and hang out with Jennifer Aniston for four days?

If your answer is anywhere in the ball park of $US3 million, you’d better get Julia Roberts’ agent on your side.

The Oscar winner just scored that exact sum for her latest role as a home shopping network star in ensemble comedy Mother’s Day.

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According to Variety, Roberts’ total time on set amounted to just four days, meaning she earned a whopping $US750,000 per day.

Amazingly, this isn’t even Roberts’ highest-paying gig – she scored $US20 million for her Oscar-winning turn in 2000’s Erin Brokovich.

So, was Roberts’ performance in Mother’s Day worth $3 million? In short, no.

The film, directed by Garry Marshall of Pretty Woman fame and also starring Aniston, Kate Hudson and Jason Sudeikis, grossed an abysmal $US8 million in the US over its opening weekend and just over $US10 million globally.

In comparison, animated children’s film The Jungle Book grossed $US103 million in the US on its opening weekend.

Roberts with co-star Jennifer Aniston.

This lacklustre box office performance could have something to do with the film’s reviews, which have been critical at best.

“Director Garry Marshall is a menace,” Rolling Stone‘s reviewer declared. “He keeps killing holidays with all-star comedies in which a laugh would die of loneliness.”

The Hollywood Reporter joked: “A movie not even a mother could love.”

The rest of the attention the film has received has been focused on Roberts’ bizarre wig – a bright orange bob – which she also wore for her 1999 hit film Notting Hill.

Roberts wearing the wig in Notting Hill.

This isn’t the first time in recent years a movie helmed by Roberts has flopped.

The Secret in Their Eyes pulled an unremarkable $32 million globally in 2015 while her 2012 Snow White film Mirror Mirror got lost among countless other adaptations.

For Roberts, this might mean she’s no longer as bankable a star as she was in the 1980s and ’90s – no real concern for a woman whose reported net worth is $170 million.

Actually, make that $173 million.