International audienceWe study the dynamics of evaporating ethanol films deposited by a receding liquidmeniscus. The films are surrounded by pure vapor in a capillary heated above the saturationtemperature. We observe the substrate dewetting with the dewetting ridge in spite of thecomplete wetting at equilibrium. The dewetting is caused by a high contact angle (∼30◦)induced by evaporation. The obtained values agree with a theory proposed earlier. The filmshape is measured with both grid deflection technique and interferometry. The phenomenonis convenient to observe inside a capillary with an axial thermal gradient. When the capillaryis closed at one end and open at another to a constant pressure reservoir, the meniscusoscillations are known to appear spontaneously. Such a system is the simplest version ofan industrial device called a pulsating heat pipe. The effect is general and can be used inany system to control the wetting propertie