They are destined to be the legwear of choice for the hipster cineaste in 2014: the high-waisted trousers worn by Joaquin Phoenix's character in the Oscar-tipped Spike Jonze drama Her have gone on sale to the public.  Dreamt up by costume designer Casey Storm, the striking pants are now available for $195 (£120) in Opening Ceremony stores in the US.  They are part of Storm's Her collection, which also features other items of clothing from and inspired by the critically-acclaimed tale.  The trousers are inspired by styles from yesteryear, but are intended to portent a futuristic vision of geeky Silicon Valley meets East Village menswear. "The first thing [people] want to know is if all guys are going to be wearing extreme high-waisted pants in the next few years," said Storm of his involvement with Her.  He added, in an interview with the Hollywood Reporter: "It's one of the last frontiers of men's fashion to come back. But it does look weird when you first see it." He admitted Phoenix himself had said: "I don't get it, but I trust you guys," when first told his character Theodore Twombly would be wearing the trousers.  "Theodore [is] sort of an average guy, and we wanted his style to reflect somebody that's comfortable and not uptight, but also a little disassembled and just going through the world," Storm told the Opening Ceremony blog last month. "I don't know exactly how we arrived at the high-waisted pants, but I think when Spike wrote the character, he had Theodore Roosevelt in mind. Joaquin's pants throughout the film also have a really tapered leg, based on late 1800s pants for riding horses. The vintage pants I found [as inspiration] were from a costume house, and when I tried them on Joaquin, it just looked right. It looked interesting and weird, but it felt comfortable and casual and a little sloppy."  In Her, Phoenix plays a writer who falls in love with an artificially intelligent computer operating system voiced by Scarlett Johansson. Jonze's debut feature-length venture as solo screenwriter is considered a strong outside bet for the Oscars and already has three Golden Globe nominations in the bag. It was named the best movie of the year by the National Board of Review last month.  • Inside the editing suite with Spike Jonze on Her• Inside the editing suite with Spike Jonze on Her
The sci-fi pants worn by the hero of Spike Jonze's Oscar-tipped romance form the centrepiece of a new fashion collection inspired by the film