Daniel Radcliffe might have benefited from a magic wand after a visa "glitch" prevented him from entering the United States from Canada.
The Harry Potter actor was left stranded in Toronto because his visa was missing a stamp from the US embassy, the New York Post reported.
Radcliffe, who has carved out an impressive stage career since the days of wands and wizardry with roles in Equus and The Cripple of Inishmaan, was on his way to Comic-Con in San Diego to promote his new film Horns when he was turned away by immigration officers on Thursday.
According to the newspaper, the actor is in the process of upgrading his current P-2 visa – designated for foreign actors and entertainers – to an O-1 visa for “the individual who possesses extraordinary ability in the sciences, arts, education, business or athletics”.
Harry Potter stars then and now
Harry Potter stars then and now
1/8 Daniel Radcliffe
The transformation of Daniel Radcliffe from the small boy pictured (right) at the first Harry Potter premiere has grown up into a critically acclaimed actor, seen earlier this year walking the red carpet.
2/8 Emma Watson
Emma Watson, seen (right) at the very first Harry Potter premiere, has gone from acting strength to strength, despite declaring at one point she would be quitting acting to pursue other projects.
3/8 Rupert Grint
Rupert Grint, who plays Ron Weasley in the films, pictured at the very first premiere (aged 13) and earlier this year.
4/8 Matthew Lewis
Possibly the biggest transformation is Matthew Lewis, who played Neville Longbottom in the films. Pictured (right) at the premiere of the Goblet of Fire and (left) earlier this year.
5/8 Tom Felton
Harry's on-screen tormentor Draco Malfoy, played by Tom Felton, who commented that after finishing Harry Potter he was looking forward to playing a less spiteful character.
6/8 Robert Pattinson
Robert Pattinson only appeared in one of the Harry Potter films, despite this it helped to launch him as a globally recognised actor today. Pictured (left) at the premiere of Goblet of Fire and (right) earlier this year at an Australian ceremony
7/8 Bonnie Wright
Harry's on-screen long-term love interest Ginny Weasley was played by Bonnie Wright, pictured (right) at the Prisoners of Azkaban premiere and earlier this year.
8/8 James and Oliver Phelps
James and Oliver Phelps played the wise-cracking Weasley twins and the two were picture together again earlier this year.
The O-1 visa allows its holder to stay in the US for up to three years, while the P-2 is only valid while the individual is working on a project and cannot exceed a year.
Radcliffe’s application was approved but he reportedly required a “stamp from the US embassy” in Toronto in order to complete the journey back to America – but “their computer system was down”.
The actor celebrated his 25th birthday in Toronto on Wednesday, where he also attended the premiere of his film What If.
It was unclear whether Radcliffe would make it to Comic-Con for a planned panel today with the cast and director of Horns.
Radcliffe stars as the protagonist in an adaptation of Joe Hill’s horror novel of the same name, playing Ignatius Perrish, a man who awakes one morning after a heavy night on the tiles to find he has a pair of horns protruding out of his temples.
It played at the 2013 Toronto Film Festival, when Daniel described the story as having “real horror and slasher horror elements but then has this incredible emotional love story in the middle of it,” he told Indie Wire.