Don’t be surprised to see video ads in your Instagram feed starting today

Instagram has been slooooowly phasing advertising into your main feed. First there were sponsored photos from brands like Michael Kors—artfully edited and filtered, of course. Now the photo-sharing app is introducing 15-second video ads, starting with a promo for Disney’s new animated film, “Big Hero 6.” Other brands you might see in your stream are Lancome,