Valve has issued a new trailer from Portal 2 highlighting the role of Stephen Merchant as "kindly British robot Wheatley" in the platformer sequel. The clip features some behind-the-scenes exploration at Aperture Labs and friendly reunion with GLaDOS, accompanied by Wheatley, his dulcet tones, and his not-fatal flashlight. Here are some new Portal 2 screenshots, and here's the embedded version of the clip.