Berlin, Sep 4 (IANS) Actress Mila Kunis wore a blonde wig while filming "The Spy Who Dumped Me" here. The mother-of-two wore a short blonde wig. The wife of actor Ashton Kutcher had to kiss co-star Sam Heughan as she filmed the new comedy on September 2, reports dailymail.co.uk. She had on a light purple dress. Later, she was seen in all black with the wig still on.